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Side-by-side financial comparison of AEMETIS, INC (AMTX) and NAPCO SECURITY TECHNOLOGIES, INC (NSSC). Click either name above to swap in a different company.

NAPCO SECURITY TECHNOLOGIES, INC is the larger business by last-quarter revenue ($48.2M vs $43.3M, roughly 1.1× AEMETIS, INC). On growth, NAPCO SECURITY TECHNOLOGIES, INC posted the faster year-over-year revenue change (12.2% vs -7.9%). NAPCO SECURITY TECHNOLOGIES, INC produced more free cash flow last quarter ($14.5M vs $-10.8M). Over the past eight quarters, NAPCO SECURITY TECHNOLOGIES, INC's revenue compounded faster (-1.1% CAGR vs -22.8%).

Aemetis, Inc. is a renewable fuels and sustainable biochemicals producer operating across North America and India. Its core products include low-carbon ethanol, renewable natural gas and biodiesel, serving transportation, industrial and agricultural sectors with decarbonization solutions for commercial clients.

Napco Security Technologies, Inc. was set up in 1969 and now is based in Amityville, New York. The company focuses on security products, such as electronic locking devices, alarm systems, and building access control systems. The company was formerly known as Napco Security Systems, Inc.

AMTX vs NSSC — Head-to-Head

Bigger by revenue
NSSC
NSSC
1.1× larger
NSSC
$48.2M
$43.3M
AMTX
Growing faster (revenue YoY)
NSSC
NSSC
+20.1% gap
NSSC
12.2%
-7.9%
AMTX
More free cash flow
NSSC
NSSC
$25.3M more FCF
NSSC
$14.5M
$-10.8M
AMTX
Faster 2-yr revenue CAGR
NSSC
NSSC
Annualised
NSSC
-1.1%
-22.8%
AMTX

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
AMTX
AMTX
NSSC
NSSC
Revenue
$43.3M
$48.2M
Net Profit
$13.5M
Gross Margin
17.8%
58.6%
Operating Margin
-5.7%
30.6%
Net Margin
28.0%
Revenue YoY
-7.9%
12.2%
Net Profit YoY
29.0%
EPS (diluted)
$-0.03
$0.38

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AMTX
AMTX
NSSC
NSSC
Q4 25
$43.3M
$48.2M
Q3 25
$59.2M
$49.2M
Q2 25
$52.2M
$50.7M
Q1 25
$42.9M
$44.0M
Q4 24
$47.0M
$42.9M
Q3 24
$81.4M
$44.0M
Q2 24
$66.6M
$50.3M
Q1 24
$72.6M
$49.3M
Net Profit
AMTX
AMTX
NSSC
NSSC
Q4 25
$13.5M
Q3 25
$-23.7M
$12.2M
Q2 25
$-23.4M
$11.6M
Q1 25
$-24.5M
$10.1M
Q4 24
$10.5M
Q3 24
$-17.9M
$11.2M
Q2 24
$-29.2M
$13.5M
Q1 24
$-24.2M
$13.2M
Gross Margin
AMTX
AMTX
NSSC
NSSC
Q4 25
17.8%
58.6%
Q3 25
-0.1%
56.6%
Q2 25
-6.4%
52.8%
Q1 25
-11.8%
57.2%
Q4 24
-4.3%
57.0%
Q3 24
4.8%
55.9%
Q2 24
-2.7%
55.3%
Q1 24
-0.8%
53.8%
Operating Margin
AMTX
AMTX
NSSC
NSSC
Q4 25
-5.7%
30.6%
Q3 25
-14.4%
27.7%
Q2 25
-20.4%
23.8%
Q1 25
-36.3%
25.4%
Q4 24
-28.7%
26.0%
Q3 24
-4.8%
26.9%
Q2 24
-20.4%
27.7%
Q1 24
-13.0%
29.4%
Net Margin
AMTX
AMTX
NSSC
NSSC
Q4 25
28.0%
Q3 25
-40.1%
24.7%
Q2 25
-44.8%
22.9%
Q1 25
-57.2%
23.0%
Q4 24
24.4%
Q3 24
-22.0%
25.4%
Q2 24
-43.8%
26.9%
Q1 24
-33.4%
26.8%
EPS (diluted)
AMTX
AMTX
NSSC
NSSC
Q4 25
$-0.03
$0.38
Q3 25
$-0.37
$0.34
Q2 25
$-0.41
$0.33
Q1 25
$-0.47
$0.28
Q4 24
$-0.29
$0.28
Q3 24
$-0.38
$0.30
Q2 24
$-0.66
$0.36
Q1 24
$-0.58
$0.36

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AMTX
AMTX
NSSC
NSSC
Cash + ST InvestmentsLiquidity on hand
$4.9M
$115.4M
Total DebtLower is stronger
Stockholders' EquityBook value
$-306.8M
$184.8M
Total Assets
$259.8M
$212.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMTX
AMTX
NSSC
NSSC
Q4 25
$4.9M
$115.4M
Q3 25
$5.6M
$105.8M
Q2 25
$1.6M
$99.2M
Q1 25
$499.0K
$89.3M
Q4 24
$898.0K
$99.2M
Q3 24
$296.0K
$91.3M
Q2 24
$234.0K
$70.7M
Q1 24
$1.6M
$60.9M
Total Debt
AMTX
AMTX
NSSC
NSSC
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$338.1M
Q3 24
$322.2M
Q2 24
$309.0M
Q1 24
$307.2M
Stockholders' Equity
AMTX
AMTX
NSSC
NSSC
Q4 25
$-306.8M
$184.8M
Q3 25
$-304.9M
$176.1M
Q2 25
$-289.3M
$168.6M
Q1 25
$-280.7M
$161.5M
Q4 24
$-263.9M
$174.2M
Q3 24
$-258.9M
$178.6M
Q2 24
$-249.0M
$178.9M
Q1 24
$-232.1M
$168.2M
Total Assets
AMTX
AMTX
NSSC
NSSC
Q4 25
$259.8M
$212.8M
Q3 25
$241.1M
$206.0M
Q2 25
$240.0M
$198.1M
Q1 25
$242.5M
$190.9M
Q4 24
$259.3M
$202.7M
Q3 24
$259.3M
$209.9M
Q2 24
$259.3M
$207.8M
Q1 24
$259.3M
$194.8M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMTX
AMTX
NSSC
NSSC
Operating Cash FlowLast quarter
$5.8M
$15.1M
Free Cash FlowOCF − Capex
$-10.8M
$14.5M
FCF MarginFCF / Revenue
-24.9%
30.1%
Capex IntensityCapex / Revenue
38.2%
1.2%
Cash ConversionOCF / Net Profit
1.12×
TTM Free Cash FlowTrailing 4 quarters
$-22.7M
$53.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMTX
AMTX
NSSC
NSSC
Q4 25
$5.8M
$15.1M
Q3 25
$3.1M
$11.6M
Q2 25
$-5.7M
$14.6M
Q1 25
$160.0K
$13.4M
Q4 24
$-12.6M
$13.5M
Q3 24
$-5.0M
$12.0M
Q2 24
$-5.1M
$14.3M
Q1 24
$-10.3M
$12.3M
Free Cash Flow
AMTX
AMTX
NSSC
NSSC
Q4 25
$-10.8M
$14.5M
Q3 25
$-1.0M
$11.4M
Q2 25
$-9.3M
$14.4M
Q1 25
$-1.7M
$13.3M
Q4 24
$-19.4M
$12.4M
Q3 24
$-9.5M
$11.3M
Q2 24
$-10.5M
$13.8M
Q1 24
$-13.9M
$12.0M
FCF Margin
AMTX
AMTX
NSSC
NSSC
Q4 25
-24.9%
30.1%
Q3 25
-1.7%
23.3%
Q2 25
-17.7%
28.4%
Q1 25
-3.9%
30.3%
Q4 24
-41.2%
28.8%
Q3 24
-11.6%
25.8%
Q2 24
-15.8%
27.4%
Q1 24
-19.1%
24.3%
Capex Intensity
AMTX
AMTX
NSSC
NSSC
Q4 25
38.2%
1.2%
Q3 25
6.9%
0.4%
Q2 25
6.7%
0.5%
Q1 25
4.3%
0.1%
Q4 24
14.4%
2.6%
Q3 24
5.5%
1.5%
Q2 24
8.1%
1.1%
Q1 24
4.9%
0.7%
Cash Conversion
AMTX
AMTX
NSSC
NSSC
Q4 25
1.12×
Q3 25
0.96×
Q2 25
1.26×
Q1 25
1.32×
Q4 24
1.29×
Q3 24
1.08×
Q2 24
1.06×
Q1 24
0.94×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMTX
AMTX

Ethanol Sales$28.8M66%
Wet Distillers Grains$6.8M16%
California Dairy Renewable Natural Gas$5.2M12%
Other$1.8M4%

NSSC
NSSC

Segment breakdown not available.

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